Business Details
50+ Years
experience
Emergency
services
Trusted HVAC, Plumbing & Electrical Services in Great Falls, MT
Founded in 1928, A.T. Klemens began as a sheet metal shop specializing in heating and ventilation. Over nearly a century, we expanded our expertise to include roofing, plumbing, electrical, and HVAC services, evolving into a comprehensive solutions provider for residential and commercial clients. Our ability to operate as a prime contractor or one-source subcontractor streamlines project coordination across multiple trades, delivering efficiency and accountability to our customers.With decades of experience serving Montana and Western states, we prioritize quality craftsmanship, competitive pricing, and team collaboration to maintain industry leadership. Customer satisfaction remains our core value, driving our commitment to innovation while upholding the high standards established at our founding. Our licensed professionals provide 24/7 emergency response, ensuring critical systems remain operational for homeowners and businesses alike.
Services
Commercial Roofing
Electrical Services
HVAC Installation
Plumbing Repairs
Details
- Year established: 1928
Highlights and features
- We offer 95+ years of combined construction industry experience across HVAC, plumbing, and electrical systems
- Our team provides 24/7 emergency service for critical system failures
- We maintain licensed journeyman plumbers and certified electricians on staff
- Our commercial roofing division features licensed applicators for major brand materials
- We coordinate multi-trade projects as prime contractors for streamlined execution
What people say
Prompt and professional service
24/7 emergency availability
Licensed and knowledgeable technicians
Competitive pricing
Long-term reliability
Services
Commercial Roofing
A.T. Klemens provides comprehensive commercial roofing solutions featuring single-ply, modified bitumen, and built-up systems. Our licensed applicators install energy-efficient materials with industry-leading warranties. Preventative maintenance programs extend roof lifespan while emergency leak repairs minimize business disruption. Serving Montana and Northwest states since 1928.
Electrical Services
We deliver full-spectrum electrical services for residential and commercial properties. Our licensed electricians handle new construction, code upgrades, and emergency repairs. Specialized capabilities include generator installations, EV charging stations, and commercial lighting retrofits. 24/7 service ensures minimal downtime for critical electrical failures in Great Falls and surrounding areas.
HVAC Installation
Our HVAC experts provide heating and cooling solutions for homes and businesses. Services include furnace replacement, ductless system installation, and commercial HVAC maintenance. Radiant floor heating and zone-controlled systems optimize energy efficiency. With technicians trained since 1928, we ensure year-round comfort through proper system design and NATE-certified service.
Plumbing Repairs
Licensed journeyman plumbers address residential and commercial plumbing needs 24/7. We handle water heater replacement, sewer line repairs, and gas line installations. Emergency services restore functionality during pipe bursts or heating failures. Preventative maintenance programs protect commercial properties while residential services include fixture upgrades and leak detection.
Questions
What areas do you service?
We serve Great Falls, Cascade County, and surrounding Montana areas with select projects in Northwest states.
Do you offer emergency services?
Yes, our 24/7 emergency response team handles urgent plumbing, electrical, and HVAC failures.
What industries do you work with?
We serve residential homeowners, commercial businesses, healthcare facilities, educational institutions, and industrial properties.
Are your technicians licensed?
All plumbers and electricians hold active Montana state licenses with specialized HVAC certifications.
How quickly can you respond?
Emergency calls typically receive response within 2 hours during business hours and 4 hours after hours.
Do you handle large-scale projects?
Yes, we manage commercial new construction and major renovations as prime contractors coordinating multiple trades.